led not blinking

Discussion in 'Embedded Systems and Microcontrollers' started by rockyraman, Nov 24, 2010.

  1. rockyraman

    Thread Starter New Member

    Nov 24, 2010
    1
    0
    i am doing a simple project with pic 16f72 microcontroller. the project is to blink the led which is connected to port a pin no. 2. led positive end is connected to port a pin and its negative end is gnd followed by a 330Ω resistor. pin 1 is connected to +5 v dc. After burn a program into pic microcontroller then i came to a result that led does not blink. then i have check the voltage on pin no.2 of pic16f72 then it is come to be .45v.
    what the problem with that circuit? i also check the program and its output in pic simulator here i found that the overall progarm is correct....
    so please help me in this problem...
     
  2. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    You should post a schematic. Are you sure there is a ground hooked up properly to the LED and the PIC?

    Are you using a decoupling capacitor?

    Can you post you code? Be sure to include the config words, and be sure to mention what compiler you are using.
     
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